//package com.csust.travel.util;
//
//import com.auth0.jwt.JWT;
//import com.auth0.jwt.algorithms.Algorithm;
//import com.auth0.jwt.exceptions.JWTVerificationException;
//import cn.hutool.core.date.DateUtil;
//import cn.hutool.core.util.StrUtil;
//import com.csust.travel.entity.NewUsers;
//import com.csust.travel.mapper.NewUsersMapper;
//import org.springframework.stereotype.Component;
//import org.springframework.web.context.request.RequestContextHolder;
//import org.springframework.web.context.request.ServletRequestAttributes;
//
//import javax.annotation.PostConstruct;
//import javax.annotation.Resource;
//import javax.servlet.http.HttpServletRequest;
//import java.util.Date;
//import java.util.concurrent.TimeUnit;
//
//@Component
//public class TokenUtils {
//
//    private static NewUsersMapper staticUserMapper;
//
//    @Resource
//    NewUsersMapper newUsersMapper;
//
//    @PostConstruct
//    public void setUserService() {
//        staticUserMapper = newUsersMapper;
//    }
//
//    public static String createToken(String userId, String sign) {
//        Algorithm algorithm = Algorithm.HMAC256(sign);
//        return JWT.create()
//                .withSubject(userId)
//                .withExpiresAt(new Date(System.currentTimeMillis() + TimeUnit.MINUTES.toMillis(60))) // 5分钟后过期
//                .sign(algorithm);
//    }
//
////    public static boolean validateToken(String token, String sign) {
////        try {
////            Algorithm algorithm = Algorithm.HMAC256(sign);
////            JWT.require(algorithm)
////                    .withSubject(JWT.decode(token).getSubject())
////                    .build()
////                    .verify(token);
////            return true;
////        } catch (JWTVerificationException e) {
////            return false;
////        }
////    }
////
////    public static NewUsers getCurrentUser() {
////        try {
////            HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
////            String token = request.getHeader("token");
////            if (StrUtil.isNotBlank(token)) {
////                String userId = JWT.decode(token).getSubject();
////                return staticUserMapper.selectById(Integer.valueOf(userId));
////            }
////        } catch (Exception e) {
////            return null;
////        }
////        return null;
////    }
//
//
////    public static NewUsers getUserByToken(String token) {
////        try {
////            if (StrUtil.isNotBlank(token)) {
////                String userId = JWT.decode(token).getSubject();
////                return staticUserMapper.selectById(Integer.valueOf(userId));
////            }
////        } catch (Exception e) {
////            return null;
////        }
////        return null;
////    }
//}
